Abstract: The invention concerns a biaxially orientated, single- or multi-layered porous film which comprises at least one porous layer and this layer contains at least one propylene polymer and polyethylene; (i) the porosity of the porous film is 30% to 80%; and (ii) the permeability of the porous film is <1000 s (Gurley number); characterized in that (iii) the porous film comprises an inorganic, preferably ceramic coating; and (iv) the coated porous film has a Gurley number of <1500 s; and (v) the coated porous film has a Gurley number of >6000 s when it is heated for 5 minutes to over 140° C. The coated, porous film has dual safety features. Furthermore, the invention also concerns a process for the production of a film of this type as well as its use in high energy or high performance systems, in particular in lithium, lithium ion, lithium-polymer and alkaline-earth batteries.

Abstract: The invention concerns a biaxially orientated, single- or multi-layered porous film which comprises at least one porous layer and this layer contains at least one propylene polymer; (i) the porosity of the porous film is 30% to 80%; and (ii) the permeability of the porous film is <1000 s (Gurley number); characterized in that (iii) the porous film comprises an inorganic, preferably ceramic coating; and (iv) the coated porous film has a Gurley number of <1500 s. Furthermore, the invention also concerns a process for the production of a film of this type as well as its use in high energy or high performance systems, in particular in lithium, lithium ion, lithium-polymer and alkaline-earth batteries.

Abstract: The present invention relates to a microporous film and use thereof as separator with greater resistance to puncturing.

Abstract: The invention describes an ion exchange membrane formed from a biaxially orientated single or multiple-layered ?-porous polypropylene film which comprises at least one ?-nucleating agent and an ion-conducting polymer and has a Gurley value of at least 10000 s.

Abstract: The invention relates to a biaxially oriented, single or multilayer porous film comprising at least one porous layer, said layer containing at least one propylene polymer, wherein (i) the porosity of the porous film is 30% to 80%, and (ii) the permeability of the porous film is <1000 s (Gurley value). The invention is characterized in that (iii) the porous film is provided with a partially inorganic, preferably ceramic lamination, and (iv) in that the laminated porous film has a Gurley value of <1200 s. The invention further relates to a method for producing such a film, and to the use thereof in high-energy or high-performance systems, in particular in lithium batteries, lithium ion batteries, lithium polymer batteries, and alkaline earth batteries.

Abstract: The invention relates to a method for producing a dispersion of nanoscale dicarboxylic acid salts, to the use of these dispersions for producing a compound, and to the use for producing films. The invention further relates to the use of the compounds for producing films.

Abstract: The invention relates to a biaxially oriented single- or multilayer porous foil, the porosity of which is generated by transformation of ss-crystalline polypropylene during orientation of the foil. The Gurley value of the foil is <250 s. The invention also relates to a process for producing the foil by using a low transverse stretching velocity for the transverse orientation process.

Abstract: The invention describes an ion exchange membrane formed from a biaxially orientated single or multiple-layered ?-porous polypropylene film which comprises at least one ?-nucleating agent and an ion-conducting polymer and has a Gurley value of at least 10000 s.

Abstract: The invention relates to a biaxially oriented electrical insulating film which is constituted of a base layer and at least one cover layer, the base layer containing a mixture from a polypropylene P1 and a polypropylene P2 which is different therefrom, the polypropylene P1 being a linear polypropylene and having an Mw/Mn>5 and a mesopentadene isotactic index of at least 95% and the polypropylene P2 having a long-chain branching.

Abstract: The present invention relates to a method for the disinfection, partial disinfection or sterilization of a product by means of UV radiation. A product is enclosed with a UV permeable packaging material made of polyhydroxycarboxylic acid and subsequently disinfecting, partially disinfecting or sterilizing in the packaged state by means of irradiation with UV radiation.

Abstract: The invention relates to a method for producing a dispersion of nanoscale dicarboxylic acid salts, to the use of these dispersions for producing a compound, and to the use for producing films. The invention further relates to the use of the compounds for producing films.

Abstract: The invention relates to a method for producing a dispersion of nanoscale dicarboxylic acid salts, to the use of these dispersions for producing a compound, and to the use for producing films. The invention further relates to the use of the compounds for producing films.

Abstract: The invention concerns a biaxially orientated, single- or multi-layered porous film which comprises at least one porous layer and this layer contains at least one propylene polymer; (i) the porosity of the porous film is 30% to 80%; and (ii) the permeability of the porous film is <1000 s (Gurley number); characterized in that (iii) the porous film comprises an inorganic, preferably ceramic coating; and (iv) the coated porous film has a Gurley number of <1500 s. Furthermore, the invention also concerns a process for the production of a film of this type as well as its use in high energy or high performance systems, in particular in lithium, lithium ion, lithium-polymer and alkaline-earth batteries.

Abstract: The present invention relates to a microporous film and use thereof as separator with greater resistance to puncturing.

Abstract: The invention relates to a biaxially oriented microporous film composed of at least two coextruded layers encompassing an external shut-off layer and another layer, wherein both layers contain a mixture of propylene homopolymer and propylene block copolymer and ?-nucleation agent. The propylene block copolymer I of the other layer has a melting point exceeding 140° C. and the propylene block copolymer II of the external shut-off layer has a melting range starting at a temperature ranging from 50 to 120° C. The melting point of the propylene block copolymer I is greater than the melting point of the propylene block copolymer II. The film can be used as a separator in a primary or secondary battery.

Abstract: The invention relates to a biaxially orientated, single or multi-layered porous film made of propylene homopolymer and/or propylene block copolymer and ss-nucleation agent. Said film has a Gurley value of between 50 to <400 s and shrinkage in the longitudinal direction of <5% at 100 DEG C./1 hour, and a transverse shrinkage of <10% at 100 DEG C./1 hour.

Abstract: The invention relates to a biaxially oriented, single or multilayer porous film comprising at least one porous layer, said layer containing at least one propylene polymer, wherein (i) the porosity of the porous film is 30% to 80%, and (ii) the permeability of the porous film is <1000 s (Gurley value). The invention is characterized in that (iii) the porous film is provided with a partially inorganic, preferably ceramic lamination, and (iv) in that the laminated porous film has a Gurley value of <1200 s. The invention further relates to a method for producing such a film, and to the use thereof in high-energy or high-performance systems, in particular in lithium batteries, lithium ion batteries, lithium polymer batteries, and alkaline earth batteries.

Abstract: The invention relates to a biaxially oriented single- or multilayer porous foil, the porosity of which is generated by transformation of ss-crystalline polypropylene during orientation of the foil. The Gurley value of the foil is <250 s. The invention also relates to a process for producing the foil by using a low transverse stretching velocity for the transverse orientation process.

Abstract: The invention relates to a method for producing a biaxially oriented polypropylene film including at least one layer, which is constructed from propylene polymer B and a propylene polymer that has been recycled once. The method includes heat and melting propylene polymer B in a first extruder and heating a melting a propylene polymer A without a fraction of recycled material in a second extruder. The molten mass of the propylene polymer A is fed to two sides of the propylene polymer molten mass of B such that the propylene polymer A forms border regions of the film during the production process. The two border regions are then cut off after longitudinal and traverse stretching of the film, and melted and mixed together with the propylene polymer B and extruded to form a precursor film in the first extruder. The biaxially oriented polypropylene film comprising a propylene polymer that has been recycled only once is useful for producing capacitors.

Abstract: The invention concerns a biaxially orientated, single- or multi-layered porous film which comprises at least one porous layer and this layer contains at least one propylene polymer and polyethylene; (i) the porosity of the porous film is 30% to 80%; and (ii) the permeability of the porous film is <1000 s (Gurley number); characterized in that (iii) the porous film comprises an inorganic, preferably ceramic coating; and (iv) the coated porous film has a Gurley number of <1500 s; and (v) the coated porous film has a Gurley number of >6000 s when it is heated for 5 minutes to over 140° C. The coated, porous film has dual safety features. Furthermore, the invention also concerns a process for the production of a film of this type as well as its use in high energy or high performance systems, in particular in lithium, lithium ion, lithium-polymer and alkaline-earth batteries.